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| Localized slow light phenomenon in symmetry broken terahertz metamolecule made of conductively coupled dark resonators | |
| Zhao, ZY; Zheng, XB; Peng, W; Zhao, HW; Zhang, JB; Luo, ZJ; Shi, WZ | |
| 2017 | |
| 发表期刊 | OPTICAL MATERIALS EXPRESS
 |
| ISSN | 2159-3930 |
| 卷号 | 7期号:6页码:1950-1961 |
| 文章类型 | 期刊论文 |
| 摘要 | We demonstrate a localized slow light phenomenon in a symmetry broken metamolecule (MM) of conductively coupled dark resonators at a terahertz band. Under a dark-mode excitation condition, the single mode resonance becomes dual modes by breaking the uniaxial symmetry of MM. Thus, a transparency window exists in between dual modes. An interaction of V-shaped plasmonic antenna-type (VA) resonances results in a plasmoninduced transparency (PIT) when the asymmetric deviation is below 13 ae m. A maximum 25.9 ps group-delay of incident THz pulse is observed at the transparency window. When the asymmetric deviation is beyond 13 mu m, one excitation pathway switches from VA resonance to the inductor-capacitor (LC) resonance, which dominates the high-frequency side-mode. Then, the PIT effect transfers to the PIT-like behavior and the slow light phenomenon vanishes. The aforementioned discovery allows for a speed modulation of slow light via symmetry breaking in MM. (C) 2017 Optical Society of America |
| 关键词 | Plasmon-induced Transparency Electromagnetically Induced Transparency Planar Metamaterial Analog Optics |
| DOI | 10.1364/OME.7.001950 |
| 关键词[WOS] | PLASMON-INDUCED TRANSPARENCY ; ELECTROMAGNETICALLY INDUCED TRANSPARENCY ; PLANAR METAMATERIAL ; ANALOG ; OPTICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000404733900022 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.sinap.ac.cn/handle/331007/28718 |
| 专题 | 中科院上海应用物理研究所2011-2018年 |
| 推荐引用方式 GB/T 7714 | Zhao, ZY,Zheng, XB,Peng, W,et al. Localized slow light phenomenon in symmetry broken terahertz metamolecule made of conductively coupled dark resonators[J]. OPTICAL MATERIALS EXPRESS,2017,7(6):1950-1961. |
| APA | Zhao, ZY.,Zheng, XB.,Peng, W.,Zhao, HW.,Zhang, JB.,...&Shi, WZ.(2017).Localized slow light phenomenon in symmetry broken terahertz metamolecule made of conductively coupled dark resonators.OPTICAL MATERIALS EXPRESS,7(6),1950-1961. |
| MLA | Zhao, ZY,et al."Localized slow light phenomenon in symmetry broken terahertz metamolecule made of conductively coupled dark resonators".OPTICAL MATERIALS EXPRESS 7.6(2017):1950-1961. |
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